One of the first steps you take when you are making a decision about your gardening schedule is find your USDA Zone info. The zone info helps tell us things like average date of last frost and lowest expected temperature for your area.

In Zone 1b you can estimate when you can plant strawflowers by referring to the USDA zone info.

Planting Calendar for Strawflowers

Frost tolerance for strawflowers:	Tolerant of a very small amount of frost.
When to plant:	Up to 3 weeks before last frost.

Strawflowers can survive in very little cold which tells us that you can plant them slightly earlier in the year than plants that are more sensitive to the cold.

The earliest that you can plant strawflowers in Zone 1b is June. However, you really should wait until July if you don't want to take any chances.

The last month that you can plant strawflowers and expect a good harvest is probably July. Any later than that and your strawflowers may not have a chance to fully mature. You can get started a little bit earlier by starting your strawflowers indoors.

Last Frost Date

On average all chance of frost has passed is on June 15 in Zone 1b. It might get as low as -55°F during the coldest months of winter.

Remember that USDA zone info for Zone 1b is just an average and the actual date of last frost changes from year to year. Since half of the time in Zone 1b there is a last frost after June 15 be ready to cover your strawflowers in the event of a surprise late frost.

USDA Zone Info for Zone 1b

Here is the info for USDA Zone 1b.

Average Date of Last Frost (spring)	June 15
Average Date of First Frost (fall)	July 15
Lowest Expected Low	-55°F
Highest Expected Low	-50°F

This means that on a really cold year, the coldest it will get is -55°F. On most years you should be prepared to experience lows near -50°F.

Plants to Grow in Zone 1b

You may be interested in your other planting guides for Zone 1b.